fdt: Allow use of fdt_support inside if() statements

Most of the fdt_support.h header file is included only if OF_LIBFDT or
OF_CONTROL are enabled. This means that calling functions defined in
that file must happen inside an #ifdef

This is unnecessary, so reduce the condition to just !USE_HOSTCC

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/include/fdt_support.h b/include/fdt_support.h
index 2cd8366..feda0d9 100644
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -7,8 +7,7 @@
 #ifndef __FDT_SUPPORT_H
 #define __FDT_SUPPORT_H
 
-#if (defined(CONFIG_OF_LIBFDT) || defined(CONFIG_OF_CONTROL)) && \
-	!defined(USE_HOSTCC)
+#if !defined(USE_HOSTCC)
 
 #include <asm/u-boot.h>
 #include <linux/libfdt.h>
@@ -418,7 +417,7 @@
  */
 int fdt_get_cells_len(const void *blob, char *nr_cells_name);
 
-#endif /* ifdef CONFIG_OF_LIBFDT */
+#endif /* !USE_HOSTCC */
 
 #ifdef USE_HOSTCC
 int fdtdec_get_int(const void *blob, int node, const char *prop_name,